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1. Te whakarōpūtanga me nga ahuatanga matū ahupūngao
| Puka whakahaere | noa | Tauwhāiti | Tikanga |
| Te momo tinana ferritic | 1. Te parenga teitei | 1He tino pai te aukati i te waikura | 0Cr13(405) |
| 1Cr17(430) | |||
| Momo martensitic | 1. He nui te kaha ki te whakapakeke, a ka piki haere te waro ki reira. | 1Cr13(410) | |
| Momo Austenitic | 1He nui te whakarea o te roha rarangi | 0Cr18Ni9(304) | |
| 0Cr19Ni11(308) | |||
| 0Cr23Ni13(309) | |||
| 0Cr25Ni20(310) | |||
| 0Cr17Ni12Mo(316) | |||
| 0Cr17Ni12Mo2Nb/Ti(318) | |||
| 0Cr19Ni13Mo3(317) | |||
| 1Cr18Ni9Ti(321) | |||
| 0Cr18Ni11Nb(347) | |||
| 0Cr20Ni25Mo5Cu2(385) | |||
| Matarua o-rino | 1. Ātete waikura Intergranular 2 ahotea waikura ātete 3 poka ātete | 00Cr22Ni5Mo3N(2205) | |
| Te momo whakapakeke o te rerenga | 1. Maamaa teitei 2 te kirihou ngoikore | 0Cr17Ni4Cu4Mo2(630) |
Te momo tinana ferritic
Momo martensitic
Momo Austenitic
Te whakapakeketanga o te rerenga
Rua: tukanga fehokotaki'anga
Ko te kowhiringa o nga rauemi kowiri tira me whai i te kaupapa o te "homogeneity".
1. Ferritic kowiri tira Ki te wera te tukanga fehokotaki'anga i te 430-480 °C mo te wa roa, me te matao ata, he tino ngāwari ki te whakaputa i te 475 °C brittleness, me te poke ka whai wāhi catalytic.E taunaki ana te tukanga fehokotaki'anga iti nāianei, fehokotaki'anga nohopuku, kahore oscillation, me te iti interlayer mana pāmahana i roto i te multilayer fehokotaki'anga.Ki te wea i nga mea mahi matotoru, me hamau te tui weld hei whakaiti i te ahotea o te whakaheke.
2. Martensitic kowiri tira rohe embrittlement wera me fehokotaki'anga kapiti matao e hiahiatia ana ki te karo i te nui e taea ka fehokotaki'anga, te tikanga tango i te preheating hāngai i mua i te fehokotaki'anga (150-300 °C) me te maimoatanga wera pou-fehokotaki'anga (700-750 ° C) mehua, te whakamahi o te kaha raina nui, ki te tika, ka taea e koe te whiriwhiri rauemi fehokotaki'anga austenitic.
3. Austenitic kowiri tira Ko nga take whakaawe o te wera wera me te waikura intergranular ko nga whakaaro tuatahi mo te whakapiri o taua kowiri tira, i runga i nga ahuatanga o te tinana, me tango he hiko raina iti mo te whakapiri, te whakamahana tere, me te iti o te pāmahana interlayer. kia whakahaeretia ina fehokotaki'anga multilayer.Me kaha ki te whakauru i te nui o te ferrite i te wa e whakapiri ana kia kore ai e puta nga kapiti waiariki.I roto i te umanga petrochemical penei i nga reactors hydrogenation me etahi atu hua motuhake, kua tino whakatauhia te maha o nga ferrites (FN) o te weld, me 3-10 te tikanga.
4. Austria-rino matarua kowiri tira he iti kapiti kapiti whakaritea ki austenitic maitai;Ka whakatauritea ki te rino ferritic, he iti te whakamaarama i muri i te weld, no reira he pai te pai o te weldability, kaore i te whakamahana i mua, i muri i te whakamahana, kaore hoki he kapiti weld e puta.Heoi, i te wa e whakamahana ana i nga wera nui, ka tipu te witi, me tango te kaha raina iti i te wa e whakapiri ana.
5. He kowiri tira-whakapakeke Na te nui o te pakeke, te ngoikore me te kirihou o tenei momo maitai, me te nui o te ahotea o te welding, he ngawari ki te whakaputa kapiti.Ka tūtohuhia he tukanga whakapiri rite ki te martensitic kowiri tira, engari me whakanui ake te pāmahana whakamahana.
Tuhipoka:Ko te Paerewa AWSA5.9 mo nga Waea Matapihi Kowiri Rawa me nga Waea Whakakii me te Paerewa YB/T5092 mo te Kowiri tira mo te Wehenga e kii ana ko te tātari matū o nga tauira rewa o te waea whakakotahi, paea ranei, waea whakakii ranei ko te whakamatautau anake e hiahiatia ana mo te whakarōpūtanga o enei hua. puka.Ara, nga taonga miihini me etahi atu whakamatautau, e ai ki nga hiahia a nga kaihoko.
Kowiri tira hiko hiko raupapa GES, ko te reta whakamutunga B i te ingoa hua e tohu ana i te koti puru, R e tohu ana i te koti whero, penei i te GES-308R e tohu ana i te koti whero GES-308, GES-312B e tohu ana i te kiri pire puru GES-312 .
Wā tuku: Oketopa-13-2022